Wrench.



A. L. TRIMBATH.

WRENCH- APPLICATION FILED JUNE 3, 1911. 1,016,049, Patented Jan 30, 1912.

27 6 WITNESSES: INVENTOR.

I M M @iL7k/MB/7Tfi.

. ATTORNEYS COLUMBIA PLANOGRAPH cm. WASHINGTON. D. c.

ABRAHAM LINCOLN TRIMBATH, F BELLAIRE, OHIO.

WRENCH.

Specification of Letters Patent.

Patented Jan. 30,1912.

Application filed June 3 1911. Serial No. 631,032.

. provide a wrench of the above type that can be easily and quickly adjusted and safely used.

Another object of the invention is to provide a wrench'of the above type wherein novel means is employed for limiting the rotative movement of the locking nut, to determine when the nut is in a locked or an unlocked position.

A further object of the invention is to provide a wrench of the above type that is simple in construction, durable and highly efficient for the purposes for which it is intended.

I attain the above objects by a mechanical construction to be hereinafter specifically described and then claimed and reference will now be had to the drawing, wherein Figure 1 is a side elevation of the wrench in accordance with the invention, Fig. 2 is a vertical sectional view of the same, with the handle thereof removed, and Fig. 3 is a horizontal sectional view showing the locking nut in locked position.

A wrench in accordance with this invention comprises a handle bar or shank 1 hav ing the upper end thereof provided with an integral or fixed jaw 2. The shank 1 has oppositely disposed flat faces 3 and oppositely disposed rounded faces 4. The faces 3 are provided with longitudinal grooves extending from a point in proximity to the jaw 2 to the lower end of the tapered handle-piece 6 of the shank 1, the grooves extending along the handle-piece 6 to facilitate the milling of the shank 1 when. forming the upper ends of the grooves 5. The faces 4 are provided with teeth 7, the teeth extending from the upper ends of the grooves 5 to the upper end of the tapering handle-piece 6. The lower end of the handle-piece 6 is reduced, to provide a threaded stem 8 and an annular shoulder 9. Mounted upon the stem 8 and retained thereon by a nut 10-is a cap 11 adapted to hold a handle 12 upon the handle-piece 6, said handle having the upper end thereof provided with a ferrule 13.

Prior to mounting the handle 12 upon the handle-piece 6, a gripping jaw 14 is slidably mounted upon the shank, said jaw having straps 15 and 16 embracing the shank 1. The gripping jaw 14 has a gripping surface 17 adapted to cooperate with a gripping surface 18 at the fixed jaw 2 in gripping the faces of a nut. The lower forward edge of the jaw 14 is provided with a depending L- shaped lug 19 adapted to engage inan annular groove 20 provided therefor in the upper reduced cylindrical end of a hexagonshaped rotatable locking nut 21. This nut is also placed upon the shank 1 and in engagement with the jaw 14, prior to placing the jaw 14 upon the shank and the handle 12 upon the handle-piece 6. The rotatable locking nut 21 has a vertical bore 22 providing clearance for-the shank 1 and diametrically opposed walls of this bore are provided with threads 23 adapted to engage the teeth 7 of the shank 1 and hold the locking nut from sliding upon said shank.

Arranged between the faces 24 of the nut 21 and the flat faces 3 of the shank 1 are segment-shaped members 25 and 26, said members having the inner faces thereof provided with tongues 27 extending into the grooves The outer faces of the members are provided with threads 28 adapted to register with the threads or teeth 7, the ends of said threads extending between the ends of the threads 23 of the locking nut 21, as at 29 whereby when said nut is held by the threads of the shank 1, the members will be retained by the nut. The member 26 is provided with an outwardly extending pin 30 and this pin is engaged by stop shoulders 31 and-82 at the lower end of the nut 21, said nut being cut away to provide clearance for the pin and to form the shoulders 31 and 32.

l/Vith the shoulder 31 in engagement with the pin 30, the locking nut 21 can be shifted longitudinally of the shank 1, to place the gripping jaw 14 in engagement with the faces of a nut or other object. By rotating the locking nut 21 until the shoulder 32 engages the pin 30, the teeth 23 of the nut are shifted into engagement with the teeth or threads 7 of the shank and said nut will be locked against longitudinal movement. \Vhen the shoulder 31 is in en 'agement with the pin 30 the teeth of the nut are in engagement with the teeth or threads 28 of the members 25 and 26, consequently the teeth or threads 7 are unsupported and the smooth walls of the bore of the nut allow said nut to slide upon the shank.

I reserve the right to construct the gripping surfaces 17 and 18 of the jaws 14: and 2 respectively wl'lereby the wrench can be used as a pipe wrench. I also reserve the right to make the wrench of various sizes and use strong and durable metal for its construction.

What I claim is A. Wrench comprising a shank having tlat faces with longitudinal grooves and oppositely disposed faces provided with teeth, a fined j aw carried by the upper end of said shank,- a handle detachably mounted upon the lower end of said shank, a gripping j aw slidably mounted upon said shank and.

formed with straps embracing said shank, a depending L-shaped lug carried by the forl ward edge of said jaw, a rotatable locking nut having an upper reduced cylindrical end provided with a groove adapted to receive the lug of said jaw, said nut having a vertical bore formed therein with diametrically opposed. walls provided With teeth adapted to engage the teeth of said shank and smooth walls adapted to confront the flat faces of said shank, members arranged in said nut between the flat faces of said shank and the smooth walls of the bore of said nut, tongues carried by the inner faces of said members and en 'aging in the grooves of said shank teeth earned by the outer sides of said members and hzjwlng the ends thereof engaging in the teeth of said nut, and a pin carried by one of said members and adapted to engage shoulders pro vided therefor in the lower end of said nut to limit the rotative movement of said nut. In testimony whereof I amx my signature in the presence of two witnesses.

ABRAHAM lI[NCOLN 'lltljlllhllll. \Vitnesses A. J. Non'roN, FRED Srnrocs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. .0. 

